BPW 4-14-50 - BIAS Power - Datasheet.Live

BPW 4 Series Data Sheet, Page 1 of 3

BIAS Power Revised 08/22/2011 www.biaspower.com

Specifications subject to change

BIAS Power Supply Module

BPW 4 Series Data Sheet

Single (Vo) or Dual (Vo & Vr) output

BPW 4-08-00, -08-33, -08-50

BPW 4-14-00, -14-33, -14-50

BPW 4-24-00

The BPW 4 Power Supply Module is an ideal solution for numer-

ous control applications in lighting, sensing, smart building and

power distribution where operation from 277VAC mains is re-

quired. This low-cost supply provides up to four watts of output

power at 8, 14 and 24 VDC (Vo) and optional 3.3 and 5.0 VDC (Vr)

output for microprocessors, logic, timing circuits, transceivers,

sensors or other control functions. Incorporating a custom inte-

grated circuit into a small package (2.45 in

[40.1 cm

]) the BIAS

Module provides an immediate “drop-in” solution, requiring no

additional external components.

Operating Specifications

(@120VAC / 60 Hz / 25ºC unless otherwise specified)

Electrical

Input Voltage Range 85 - 308 VAC (50/60Hz)

Input Surge Withstand 345V, < 30 sec

Output Power (Pmax) 4 W min. (60Hz)

3.33 W min. (50Hz)

Efficiency ≥ 70%

Output Vo (Peak) 8, 14 or 24 VDC nom. +/- 5%

Line / Load Regulation Vo (Peak) +/- 1% Po < Pmax

Temperature Regulation Vo (Peak) +/- 2% Po < Pmax

Ripple Vo (@120 Hz)

(@ 100 kHz)

1.75 V p:p

0.25 V p:p

Output Vr, 3.3 volt (+/- 5%)

For Vo = 8V, Ir out 160mA max, Io+Ir ≤ 500mA

For Vo = 14V, Ir out 70mA max, Io+Ir ≤ 285mA

For Vo = 24V, Vr not available

Output Vr, 5.0 volt (+/- 5%)

For Vo = 8V, Ir out 250mA max, Io+Ir ≤ 500mA

For Vo = 14V, Ir out 83mA max, Io+Ir ≤ 285mA

For Vo = 24V, Vr not available

No-load Consumption 30 mW typical @ Vin=120 VAC

Isolation 3000 VAC (meets UL / CSA & EN Product Safety)

Earth Leakage @ 120 VAC < 10 uA

Short Circuit Protection Continuous, Pin ≤ 0.7 w @ Vin = 120 VAC

Reliability @ 25° C, MIL HDBK-217F

> 500 Khr MTBF

Thermal

Operating Temperature -30 to +70

Operating Relative Humidity 0 – 95%, non-condensing

Storage Temperature -40 to +105

Mechanical

Package Size (L x W x H) 1.91 x 1.31 x 0.98 inches [48.5 x 33.3 x 24.9 mm]

Safety

Safety Compliance UL / EN 60950-1 2

Ed. (CB Report Available)

EMI Emissions EN 55022, Class B, FCC Part 15, Class B

Features

• Universal Input (85-308 VAC, 50/60Hz)

• Small Size—2.45 in

[40.1 cm

]

• Low no-load input power <30mW

• Constant power mode, not current limit

• 3000 VAC Isolation

• Up to 75% efficiency

• EN 55022, Class B; FCC Part 15, Class B

• Meets UL/CSA and EN Product Safety (ITE)

Bias Power AC/DC power supplies are designed to be

applied in two major categories of applications…

Auxiliary, where the Bias supply is one of two or more sup-

plies and provides power for standby, housekeeping, bias-

ing or other requirements. Generally, these supply 3.3V or

5.0V requirements from the Vr output. In some cases a

small amount of Vo power is used.

Second is as a main or utility supply where Bias is the only

supply and provides all power necessary for the product or

system. Both Vr and Vo supplies are often utilized for opti-

mum system performance.

The characteristics of the Vo and Vr outputs are different

and each has application-specific benefits which can pro-

vide high value to the system designer.

Vo is a voltage-regulated output which has a constant

power mode instead of a conventional current limit. This

output is best suited to drive mechanical relays, solenoids,

SSRs, capacitive loads, indicating lights, LEDs and as a

source for isolated DC utility power which may be used

directly or post-regulated with either a linear regulator or a

DC/DC converter. Vo is self protecting, cannot be over-

loaded and can be shorted indefinitely. The graceful transi-

tion from voltage regulation to constant power along with

the wide range of product ratings, allows the designer to

select a supply tightly matched to the design load. There is

no need to oversize a Bias Power supply. Unlike design-

your-own, or partially complete modules where significant

design margin is required, to stay far away from current

limit, Bias’s constant power alternative requires no such

over-spec’ing.

Vr is also a voltage-regulated output and is thermally pro-

tected from overload. It has very low output ripple capable

of driving microprocessors , logic, transceivers, sensors and

other elements which require a low-noise, tightly-regulated

supply. In addition, Vr is supplied internally by Vo. This

means that any capacitance added to Vo can increase the

hold-up time of Vr as well.

*Note: maximum currents specified for constant voltage

range only. See V-I curve on page 2 for Vo in constant

power range.